CN113204715B - User recommendation method and device, electronic equipment and storage medium - Google Patents
User recommendation method and device, electronic equipment and storage medium Download PDFInfo
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- CN113204715B CN113204715B CN202110393379.7A CN202110393379A CN113204715B CN 113204715 B CN113204715 B CN 113204715B CN 202110393379 A CN202110393379 A CN 202110393379A CN 113204715 B CN113204715 B CN 113204715B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/90—Details of database functions independent of the retrieved data types
- G06F16/95—Retrieval from the web
- G06F16/953—Querying, e.g. by the use of web search engines
- G06F16/9536—Search customisation based on social or collaborative filtering
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/90—Details of database functions independent of the retrieved data types
- G06F16/95—Retrieval from the web
- G06F16/953—Querying, e.g. by the use of web search engines
- G06F16/9537—Spatial or temporal dependent retrieval, e.g. spatiotemporal queries
Abstract
The application discloses a user recommendation method, a user recommendation device, electronic equipment and a storage medium. The method comprises the following steps: performing radio frequency fingerprint acquisition; uploading the acquired first radio frequency fingerprint information of the first set reference point to a server; the first set reference point is one set reference point of a plurality of set reference points arranged on at least one set traffic line; receiving second information returned by the server based on the matching results of the first radio frequency fingerprint information and the plurality of set reference points; the second information characterizes user information corresponding to a terminal of the first terminal located in the same train traveling on the set traffic route.
Description
Technical Field
The present disclosure relates to the field of data processing technologies, and in particular, to a user recommendation method, a device, an electronic device, and a storage medium.
Background
In the related art, subway shifts taken by users are deduced according to the arrival time and the departure time of the users, so that users taking the same subway shifts are recommended to the users, in practical application, the time interval of the subway shifts is short, the arrival time and the departure time of the users are also influenced by the walking speed of the users, transfer situations exist, user recommendation information cannot be timely generated, and the generated user recommendation information has low accuracy.
Disclosure of Invention
In view of this, the embodiments of the present application provide a user recommendation method, apparatus, electronic device, and storage medium, so as to at least solve the problems of poor timeliness and reduced accuracy of user recommendation information in the related art.
The technical scheme of the embodiment of the application is realized as follows:
the embodiment of the application provides a user recommendation method, which comprises the following steps:
performing radio frequency fingerprint acquisition;
uploading the acquired first radio frequency fingerprint information of the first set reference point to a server; the first set reference point is one set reference point of a plurality of set reference points arranged on at least one set traffic line;
receiving second information returned by the server based on the matching results of the first radio frequency fingerprint information and the plurality of set reference points; the second information characterizes user information corresponding to a terminal of the first terminal located in the same train traveling on the set traffic route.
In the above scheme, the method further comprises:
triggering and executing radio frequency fingerprint acquisition when the first terminal is detected to enter the range of the area where the at least one set traffic route is located; and/or the number of the groups of groups,
And stopping performing radio frequency fingerprint acquisition when the first terminal is detected to leave the range of the area where the at least one set traffic route is located.
In the above scheme, the performing radio frequency fingerprint acquisition includes:
under the condition that a first function of the first terminal is in an on state, performing radio frequency fingerprint acquisition; the first function characterizes a function of acquiring user recommendation information based on radio frequency fingerprint information.
The embodiment of the application also provides another user recommendation method, which comprises the following steps:
receiving first radio frequency fingerprint information acquired by each terminal in a plurality of terminals; each received first radio frequency fingerprint information corresponds to a set reference point; wherein, a plurality of setting reference points are arranged on at least one setting traffic route;
clustering the received plurality of first radio frequency fingerprint information to generate at least one first set; each first set in the at least one first set consists of first radio frequency fingerprint information with a first similarity greater than a set value;
estimating an area where each first set in the at least one first set is located based on second radio frequency fingerprint information corresponding to each set reference point in the plurality of set reference points;
Determining the at least one second set based on the region of each first set in the at least one first set; the second set represents a first set matched with the area where the same train is located on the set traffic route on the area;
sending second information to each terminal corresponding to each second set; and the second information characterizes user information corresponding to other terminals in the second set.
In the above solution, when estimating the area where each first set in the at least one first set is located based on the second radio frequency fingerprint information corresponding to each set reference point in the plurality of set reference points, the method includes:
determining second similarity between the first set and second radio frequency fingerprint information corresponding to each set reference point based on third radio frequency fingerprint information corresponding to the first set; the third radio frequency fingerprint information is radio frequency fingerprint information corresponding to the central position of the first set;
and determining the area where the first set is located according to the position information of the corresponding set reference point with the highest second similarity.
In the above scheme, the clustering the received multiple first rf fingerprint information to generate at least one first set includes:
Screening the received plurality of first radio frequency fingerprint information according to set conditions to generate at least one screening result; the screening result represents a first radio frequency fingerprint collected at a set reference point distributed on the same set traffic route;
clustering a plurality of first radio frequency fingerprint information of each screening result in the at least one screening result to generate at least one first set.
The embodiment of the application also provides a user recommendation device, which comprises:
the acquisition unit is used for performing radio frequency fingerprint acquisition;
the reporting unit is used for uploading the acquired first radio frequency fingerprint information of the first set reference point to the server; the first set reference point is one set reference point of a plurality of set reference points arranged on at least one set traffic line;
the first receiving unit is used for receiving second information returned by the server based on the matching results of the first radio frequency fingerprint information and the plurality of set reference points; the second information characterizes user information corresponding to a terminal of the first terminal located in the same train traveling on the set traffic route.
The embodiment of the application also provides another user recommendation device, which comprises:
The second receiving unit is used for receiving the first radio frequency fingerprint information acquired by each terminal in the plurality of terminals; each received first radio frequency fingerprint information corresponds to a set reference point; wherein, a plurality of setting reference points are arranged on at least one setting traffic route;
the generating unit is used for clustering the received multiple first radio frequency fingerprint information to generate at least one first set; each first set in the at least one first set consists of first radio frequency fingerprint information with a first similarity greater than a set value;
the first determining unit is used for estimating the area where each first set in the at least one first set is located based on the second radio frequency fingerprint information corresponding to each set reference point in the plurality of set reference points;
a second determining unit, configured to determine the at least one second set based on a region where each of the at least one first set is located; the second set represents a first set matched with the area where the same train is located on the set traffic route on the area;
a sending unit, configured to send second information to each terminal corresponding to each second set; and the second information characterizes user information corresponding to other terminals in the second set.
The embodiment of the application also provides electronic equipment, which comprises:
a processor and a memory for storing a computer program capable of running on the processor,
wherein the processor is configured to execute the steps of any of the methods described above when the computer program is run.
The present application also provides a storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of any of the methods described above.
In the embodiment of the application, radio frequency fingerprint acquisition is performed; uploading the acquired first radio frequency fingerprint information of the first set reference point to a server; the first set reference point is one set reference point of a plurality of set reference points arranged on at least one set traffic line; receiving second information returned by the server based on the matching results of the first radio frequency fingerprint information and the plurality of set reference points; the second information represents user information corresponding to the terminal of the same train running on the set traffic route, and the user information on the same train can be obtained for recommendation according to the position of the user on the traffic route by the collected radio frequency fingerprint information, so that the same train can be used as a social connection without connection, and the accuracy of recommendation information is improved.
Drawings
Fig. 1 is a schematic implementation flow chart of a user recommendation method according to an embodiment of the present application;
fig. 2 is a schematic partial perspective view of a subway station according to an embodiment of the present disclosure;
FIG. 3 is a schematic flowchart of an implementation of a user recommendation method according to an embodiment of the present application;
fig. 4 is a schematic implementation flow chart of a user recommendation method according to another embodiment of the present application;
FIG. 5 is a schematic diagram of a screening result according to an embodiment of the present disclosure;
FIG. 6 is a schematic diagram of determining a second set according to an embodiment of the present application;
fig. 7 is a schematic flowchart of an implementation of a user recommendation method according to an embodiment of the present application;
FIG. 8 is a schematic diagram of interaction between a terminal and a server in a process of generating recommendation information according to an embodiment of the present application;
FIG. 9 is a schematic structural diagram of a user recommendation device according to an embodiment of the present application;
FIG. 10 is a schematic structural diagram of a user recommendation device according to another embodiment of the present application;
fig. 11 is a schematic diagram of a hardware composition structure of an electronic device according to an embodiment of the present application.
Detailed Description
The present application will now be described in further detail with reference to the accompanying drawings and specific examples.
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system configurations, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
The technical solutions described in the embodiments of the present application may be arbitrarily combined without any conflict.
In addition, in the embodiments of the present application, "first," "second," and the like are used to distinguish similar objects, and are not necessarily used to describe a particular order or sequence.
The embodiment of the application provides a user recommending method, and fig. 1 is a schematic flow chart of a user physical examination method in the embodiment of the application. As shown in fig. 1, the method includes:
s101: and performing radio frequency fingerprint acquisition.
Here, the terminal starts the collection of the radio frequency fingerprint, so that the corresponding radio frequency fingerprint can be collected. In practical application, the collection of the radio frequency fingerprint can be started after the terminal enters the corresponding area, so that the radio frequency fingerprint information corresponding to the area where the terminal is located can be collected, for example, when the terminal enters a subway station or the terminal enters a bus station, the terminal executes the collection of the radio frequency fingerprint information, and in the process of executing the collection of the radio frequency fingerprint, the terminal periodically collects the corresponding radio frequency fingerprint, so that the power consumption of the terminal can be reduced. In practical applications, for radio frequency fingerprint acquisition, the terminal may acquire corresponding features according to table 1.
TABLE 1
In an embodiment, the performing radio frequency fingerprinting includes:
under the condition that a first function of the first terminal is in an on state, performing radio frequency fingerprint acquisition; the first function characterizes a function of acquiring user recommendation information based on radio frequency fingerprint information.
In practical application, for some users, there is a need for user recommendation with a train, and for other users, user recommendation with a train is not needed, so that by changing the open state or the closed state of the first function on the first terminal, the user decides whether to enable the function of acquiring user recommendation information according to the radio frequency fingerprint information, thereby meeting the personalized needs of the user and carrying out corresponding custom setting. When the first function of the first terminal is in an on state, the user is required to acquire user recommendation information of the same train, and then radio frequency fingerprint acquisition is carried out, so that corresponding user recommendation information is generated for the user.
In the above embodiment, the radio frequency fingerprint acquisition is performed when the first function of the first terminal is in an on state; the first function characterizes the function of acquiring user recommendation information based on the radio frequency fingerprint information, and can meet the requirements of different user recommendations of users, so that the user information recommendation can be realized more accurately.
S102: uploading the acquired first radio frequency fingerprint information of the first set reference point to a server; the first set reference point is one set reference point of a plurality of set reference points distributed on at least one set traffic line.
Here, the terminal uploads the acquired first radio frequency fingerprint information to the server in real time, where the first radio frequency fingerprint acquired by the terminal is a radio frequency fingerprint located at one place on the set traffic route, and may correspond to a set reference point arranged on the traffic route. In practical applications, a plurality of set reference points may be disposed on a set traffic route, for example, for a subway traffic route, the disposed set reference points may include a subway station hall, a subway station and a track section between two adjacent subway stations, generally, one set reference point may be disposed at an intermediate position of each subway station, one or more set reference points may be disposed at each subway station hall according to a size of the hall and a wireless environment in the hall, and a plurality of set reference points may be disposed at a track section between two adjacent subway stations according to a track length and a wireless environment in the track, wherein, for the same area, a principle of disposing set reference points is that there is a significant difference according to radio frequency fingerprint characteristics between reference points, for example, different set reference points may be disposed according to a difference of physical IDs of cells, so that a corresponding set reference point may be determined according to radio frequency fingerprint characteristics. In practical application, there will be a plurality of subway lines in a subway station, as shown in fig. 2, fig. 2 shows a partial schematic perspective view of the subway station, in which, in the subway station X in fig. 2, a subway line 1 and a subway line 2 are intersected, the top layer is a subway station hall of the subway station X, the subway line 1 is located in the middle layer of the subway station X, the subway line 2 is located in the bottom layer of the subway station X, assuming that the total number of up-down lines of the whole subway line 1 and the whole subway line 2 is 3, the subway line 1 is an a station at the station of the subway station X, the subway line 2 is a B station at the station of the subway station X, triangle marks located on the subway line 1 and the subway line 2 are set reference points for arrangement, 3 set reference points are arranged in the subway station hall of the subway station X, and 1 set reference point is arranged at each of the a station and the B station.
S103: receiving second information returned by the server based on the matching results of the first radio frequency fingerprint information and the plurality of set reference points; the second information characterizes user information corresponding to a terminal of the first terminal located in the same train traveling on the set traffic route.
The terminal uploads the acquired first radio frequency fingerprint information to the server, and then receives second information returned by the server, wherein the second information is generated by matching the first radio frequency fingerprint information reported by the terminal with a plurality of set reference points distributed on a traffic route, in practical application, the traffic route can be divided into different areas according to different set reference points distributed on the traffic route, the first radio frequency fingerprint information acquired by the terminal is matched with the set reference points, and the set reference points corresponding to the first radio frequency fingerprint information can be determined mainly by matching the characteristics of the first radio frequency fingerprint information with the characteristics of the radio frequency fingerprint information corresponding to the set reference points. In practical application, when the set reference point corresponding to the first radio frequency fingerprint acquired by the first terminal is located on the track area, it can be determined that the current first terminal is located on the train running on the set traffic line, so that the determined user information located at the set reference point can be sent to the first terminal, and the first terminal can acquire the user information of the same train running on the same set traffic line.
In the above embodiment, the radio frequency fingerprint acquisition is performed; uploading the acquired first radio frequency fingerprint information of the first set reference point to a server; the first set reference point is one set reference point of a plurality of set reference points arranged on at least one set traffic line; receiving second information returned by the server based on the matching results of the first radio frequency fingerprint information and the plurality of set reference points; the second information characterizes user information corresponding to the terminal of the same train running on the set traffic route, the user information of the same train running on the same traffic route with the terminal can be pushed to the terminal through the radio frequency fingerprint information collected by the terminal and the reference point pre-arranged on the traffic route, user recommendation information can be accurately generated, and the accuracy of the user recommendation information is improved.
In an embodiment, the method further comprises:
triggering and executing radio frequency fingerprint acquisition when the first terminal is detected to enter the range of the area where the at least one set traffic route is located; and/or the number of the groups of groups,
and stopping performing radio frequency fingerprint acquisition when the first terminal is detected to leave the range of the area where the at least one set traffic route is located.
Here, since the user recommended for the first terminal is a user located on the same train as the first terminal, the first radio frequency fingerprint information collected by the first terminal should be collected in the area where the terminal is located in the set traffic route, and when the first terminal leaves the area where the set traffic route is located, it indicates that the first terminal does not need to pick up the train or leave the train any more, in this case, there is no need to obtain the recommendation of the user on the same train, and accordingly, the collection of the radio frequency fingerprint is stopped. In practical applications, for most of the set traffic routes, the gate is required to be passed when the first terminal enters or leaves the station, so that whether the first terminal passes through the gate or not can be judged to further judge that the first terminal enters or leaves the area where the set traffic route is located. For example, card swiping information corresponding to a travel application program or near field communication (NFC, near Field Communication) on the first terminal may be detected, and by using the card swiping information, it may be clearly determined that the first terminal enters or leaves an area range where the traffic route is set. In practical applications, the determining may also be performed by the positioning information of the first terminal, for example, when the current positioning information of the first terminal indicates that the first terminal is located at a station on a set traffic route, the performing of the radio frequency fingerprint acquisition may be triggered, and when the current positioning information of the first terminal indicates that the first terminal is away from a station on a set traffic route, the performing of the radio frequency fingerprint acquisition may be stopped.
In the above embodiment, when the first terminal is detected to enter the area where the at least one set traffic route is located, the radio frequency fingerprint acquisition is triggered to be executed; and/or stopping performing the radio frequency fingerprint acquisition when the first terminal is detected to leave the area range of the at least one set traffic route, and judging whether the terminal is positioned in the area range of the set traffic route or not, so as to infer whether the terminal has the recommended requirement of the train user or not, further triggering or suspending the acquisition of the radio frequency fingerprint, saving the energy consumption of the terminal and providing high-precision user recommendation information for the terminal.
The embodiment of the application also provides another user recommendation method, and fig. 3 is a schematic flow chart of the user recommendation method in the embodiment of the application. As shown in fig. 3, the method includes:
s301: receiving first radio frequency fingerprint information acquired by each terminal in a plurality of terminals; each received first radio frequency fingerprint information corresponds to a set reference point; wherein, a plurality of setting reference points are arranged on at least one setting traffic route.
Here, the server receives first rf fingerprint information collected by a plurality of terminals, where the first rf fingerprint information is collected by the terminals on a set traffic line, and in practical application, in order to determine users located on the same train, set reference points are typically disposed on different areas on the set traffic line, so that different trains can be distinguished, and thus, the first rf fingerprint information collected by the terminals can correspond to one set reference point disposed on the set traffic line.
S302: clustering the received plurality of first radio frequency fingerprint information to generate at least one first set; each first set of the at least one first set is composed of first radio frequency fingerprint information with a first similarity greater than a set value.
The received plurality of first radio frequency fingerprint information is clustered, wherein the clustering is used for classifying similar data in the plurality of data into one group, so that the plurality of data can be classified into different groups, and the processing efficiency of the data can be improved. In practical application, because the radio frequency fingerprint information corresponding to the same area or similar places is similar or identical, the first radio frequency fingerprint information acquired by the same first set reference point can be uniformly processed according to the first similarity of the first radio frequency fingerprint information. In practical application, a K-means algorithm or a PAM algorithm can be adopted to perform clustering processing on the received plurality of first radio frequency fingerprint information.
In one embodiment, as shown in fig. 4, the clustering the received plurality of first rf fingerprint information to generate at least one first set includes:
s401: screening the received multiple radio frequency fingerprint information according to set conditions to generate at least one screening result; the screening result represents a first radio frequency fingerprint collected at a set reference point distributed on the same set traffic route.
Here, the server can receive the first rf fingerprint information reported by different terminals, where the first rf fingerprint information reported by the terminals is collected on different set traffic lanes, and the server needs to determine the first rf fingerprint information collected at the set reference point on the same set traffic lane from the received first rf fingerprint information, so that the data volume required to be processed is huge in the process of directly clustering all the first rf fingerprint information in the plurality of first rf fingerprint information received by the server, and in practical application, for one set traffic route, the user at the same station may become the user on the same train, so that in practical application, the received first rf fingerprint information may be screened, where the first rf fingerprint information collected at the set reference point on the same set traffic lane from the received first rf fingerprint information may be further screened. As shown in fig. 5, fig. 5 shows a schematic diagram of a screening result. In fig. 5, a subway station 1 includes two subway lines, namely a line 1 and a line 2, a station a is used in the up-down direction of the line 1, a station B is used in the up-down direction of the line 2, and a train 1 and a train 2 are located on a line track between the subway station 2 and the subway station 1, wherein the train 1 is closer to the subway station 1, and the train 2 is closer to the subway station 2, so that a screening result is determined by a first radio frequency fingerprint information collected by a terminal on the train 1, a first radio frequency fingerprint information collected by a terminal of the station a, a first radio frequency fingerprint information collected by a terminal of the station B, and a first radio frequency fingerprint information collected by a terminal of a station hall of the subway station 1, and the first radio frequency fingerprint information collected by the terminal on the train 2 can be classified as the screening result corresponding to the subway station 2. In practical application, the corresponding terminal in the screening result can be different from subway station, from train, into train, etc., and these conditions lead to the user on the same train to change, so the user change on the same train can be further accurately obtained through the screening result. In practical application, when the received first radio frequency fingerprint information is screened, the position corresponding to the first radio frequency fingerprint information is determined based on the position corresponding to the last time the terminal reports the first radio frequency fingerprint information, for example, according to the region determined after the last time the terminal reports the first radio frequency fingerprint information and the cluster analysis, the terminal at the same station is determined to be the corresponding screening result, and even if the users at the same station change, so that the users at the same train can be determined in the first radio frequency fingerprint information within a limited range. In practical application, when the terminal enters the area where the set traffic route is located for the first time, the first radio frequency fingerprint information collected when entering the area where the set traffic route is located can be matched with the second radio frequency fingerprint information corresponding to the set reference point distributed on different traffic routes, so that the corresponding first radio frequency fingerprint information is distributed to the corresponding screening result, and in addition, the screening result corresponding to the first radio frequency fingerprint information collected by the terminal can be determined through the positioning information of the terminal.
S402: clustering a plurality of first radio frequency fingerprint information of each screening result in the at least one screening result to generate at least one first set.
Here, the screening result is that the first radio frequency fingerprints belonging to the same site in the plurality of first radio frequency fingerprints received by the server are extracted, and in practical application, users of the same train on the same set traffic line are also included in the screening result, so that the plurality of first radio frequency fingerprint information of each screening result in at least one screening result is clustered, and different first radio frequency fingerprint information in the same site can be classified again, thereby determining the first radio frequency fingerprint information in the same region in the same site, and being beneficial to improving the processing efficiency of data.
In the above embodiment, the received plurality of first rf fingerprint information is screened according to the set condition to generate at least one screening result; the screening result represents a first radio frequency fingerprint collected at a set reference point distributed on the same set traffic route; and clustering the plurality of first radio frequency fingerprint information of each screening result in the at least one screening result to generate at least one first set, and further limiting the determination range of the co-train users, thereby being beneficial to reducing the data quantity in the data processing process, improving the data processing efficiency and improving the accuracy of the user recommended information.
S303: and estimating the area of each first set in the at least one first set based on the second radio frequency fingerprint information corresponding to each set reference point in the plurality of set reference points.
Here, the server may acquire and store the second rf fingerprint information corresponding to each set reference point in the plurality of set reference points, and may estimate the area where each first set is located according to the second rf fingerprint information corresponding to each set reference point. In practical application, as the first radio frequency fingerprint information in the same first set has similarity, the areas corresponding to the first radio frequency fingerprint information in the first set are similar, so that the determined area where the first set is located can be regarded as the position information corresponding to each first radio frequency fingerprint information in the first set, and the position of the corresponding terminal can be determined.
S304: determining the at least one second set based on the region of each first set in the at least one first set; the second set characterizes a first set that matches in area with the area where the same train is traveling on the set traffic route.
Here, the server needs to acquire user information on the same train on the set traffic route, and can determine the terminal of the same train traveling on the set traffic route by the area where the first set is located, thereby determining the second set. The area where the first set is located can be determined where the first set is located on the set traffic route, in practical application, because a user on a running train cannot change, the first set located in the same area between two stations can be determined as the second set, for example, as shown in fig. 6, fig. 6 is a schematic diagram for determining the second set, a set reference point 1 and a set reference point 2 are arranged between a station and a B station, the first set where the area where the first set is located is determined as the second set where the area where the first set is located at the set reference point 1, and the first set where the area where the first set is located is determined as the second set, so that a terminal of the same train running on the set traffic route can be determined according to the area where each first set is located.
S305: sending second information to each terminal corresponding to each second set; and the second information characterizes user information corresponding to other terminals in the second set.
Here, each terminal in the second set is located at a terminal of the same train traveling on the set traffic route, the server can collect user information corresponding to each terminal in the second set, for example, the user name of each terminal in the second set can be determined, the server sends the collected user information to each terminal in the second set, in practical application, the recommendation information required to be obtained by each terminal should be user information corresponding to other terminals except the terminal, therefore, when the server sends the second information to each terminal in the second set, the user information corresponding to other terminals in the second set is sent to the corresponding terminal, so that each terminal can obtain recommendation information of other users of the same train.
In the above embodiment, the first radio frequency fingerprint information collected by each of the plurality of terminals is received; each received first radio frequency fingerprint information corresponds to a set reference point; wherein, a plurality of setting reference points are arranged on at least one setting traffic route; clustering the received plurality of first radio frequency fingerprint information to generate at least one first set; each first set in the at least one first set consists of first radio frequency fingerprint information with a first similarity greater than a set value; estimating an area where each first set in the at least one first set is located based on second radio frequency fingerprint information corresponding to each set reference point in the plurality of set reference points; determining the at least one second set based on the region of each first set in the at least one first set; the second set represents a first set matched with the area where the same train is located on the set traffic route on the area; sending second information to each terminal corresponding to each second set; the second information characterizes the user information corresponding to other terminals in the second set, the server reduces the processing capacity of data by carrying out cluster analysis on the radio frequency fingerprint information, so that the processing efficiency of the data is improved, the user information of the same train can be determined and recommended according to the radio frequency fingerprint information, and accurate user information recommendation can be carried out.
In an embodiment, as shown in fig. 7, when estimating the area where each of the at least one first set is located based on the second rf fingerprint information corresponding to each of the plurality of set reference points, the method includes:
s701: determining second similarity between the first set and second radio frequency fingerprint information corresponding to each set reference point based on third radio frequency fingerprint information corresponding to the first set; the third radio frequency fingerprint information is radio frequency fingerprint information corresponding to the central position of the first set.
Here, since the similarity between the first rf fingerprint information in the same first set is high, in order to reduce the data amount in the data processing process, the location estimation may be performed based on one first rf fingerprint information in the first set, so that the area where the first set is located may be obtained, and it is not necessary to determine the area where the first set is located after performing the location estimation on each first fingerprint information in the first set, so that the data amount to be processed may be greatly reduced, and in order to determine the area where the first set is located more accurately, it is necessary to select the first rf fingerprint information for performing the data processing to satisfy a certain condition. In practical application, for a cluster obtained by cluster analysis, data in the center of the cluster is generally selected as a representative object of the cluster, in this embodiment, the radio frequency fingerprint information corresponding to the center position of the first set is used as third radio frequency fingerprint information, where the third radio frequency fingerprint information is a representative object of the first set, in practical application, the third radio frequency fingerprint information may be radio frequency fingerprint information closest to the average radio frequency fingerprint information feature in the first set, and the radio frequency fingerprint information similarity in the same area may even be completely consistent, so that similarity calculation is performed on the second radio frequency fingerprint information corresponding to the set reference point and the third radio frequency fingerprint information, and it is beneficial to determine the area where the first set is located.
S702: and determining the area where the first set is located according to the position information of the corresponding set reference point with the highest second similarity.
Here, the position of the first set may be estimated according to the difference of the second similarity, for example, when the second similarity is lower, the probability that the first set is located in the area where the corresponding set reference point is located is lower, and when the second similarity is higher, the probability that the first set is located in the area where the corresponding set reference point is located is higher, and in practical application, the position information of the corresponding set reference point when the second similarity is highest is determined as the area where the first set is located. For example, the second similarity between the third rf fingerprint information and the station of the station X is lower than the second similarity between the third rf fingerprint information and the hall of the station X, and the area where the first set is located may be determined to be the hall area of the station X.
In the above embodiment, based on the third rf fingerprint information corresponding to the first set, the second similarity between the first set and the second rf fingerprint information corresponding to each set reference point is determined; the third radio frequency fingerprint information is radio frequency fingerprint characteristics corresponding to the central position of the first set; according to the position information of the set reference point with the highest corresponding second similarity, the area where the first set is located is determined, so that the data amount required to be processed in the process of determining the position corresponding to the radio frequency fingerprint can be reduced, the data processing efficiency is improved, users on the same train can be accurately determined, and high-accuracy user recommendation information is provided.
The embodiment of the application also provides an application embodiment, as shown in fig. 8, and fig. 8 shows a schematic diagram of interaction between the terminal and the server in the process of generating the recommendation information.
S801: and the terminal judges whether the terminal enters the area range where the set traffic route is located. If the terminal enters the area range where the set traffic route is located, the process goes to S102; if the terminal does not enter the area where the set traffic route is located, continuing to monitor the terminal.
S802: the terminal performs acquisition of the first radio frequency fingerprint information.
S803: and the terminal uploads the first radio frequency fingerprint information to the server.
S804: and the server receives the first radio frequency fingerprint information uploaded by the plurality of terminals.
S805: the server generates at least one first set. The server performs cluster analysis on the plurality of first radio frequency fingerprint information, and classifies the first radio frequency fingerprint information with similarity larger than a set threshold value into one set, so as to generate at least one first set.
S806: and determining the area where each first area is located. The server matches the second radio frequency fingerprint information corresponding to the set reference points arranged on each set traffic line with the first radio frequency fingerprint information to determine the area where the first area is located.
S807: and determining the first set matched with the area where the trains traveling on the same set route are located as a second set.
S808: and sending user recommendation information to each terminal in the second set.
In order to implement the method of the embodiment of the present application, the embodiment of the present application further provides a user recommendation device, as shown in fig. 9, where the device includes:
the acquisition unit 901 is used for performing radio frequency fingerprint acquisition;
the reporting unit 902 is configured to upload the acquired first rf fingerprint information of the first set reference point to a server; the first set reference point is one set reference point of a plurality of set reference points arranged on at least one set traffic line;
a first receiving unit 903, configured to receive second information returned by the server based on matching results of the first radio frequency fingerprint information and the plurality of set reference points; the second information characterizes user information corresponding to a terminal of the first terminal located in the same train traveling on the set traffic route.
In an embodiment, the acquisition unit 901 is further configured to:
triggering and executing radio frequency fingerprint acquisition when the first terminal is detected to enter the range of the area where the at least one set traffic route is located; and/or the number of the groups of groups,
And stopping performing radio frequency fingerprint acquisition when the first terminal is detected to leave the range of the area where the at least one set traffic route is located.
In an embodiment, the acquisition unit 901 performs radio frequency fingerprint acquisition, including:
under the condition that a first function of the first terminal is in an on state, performing radio frequency fingerprint acquisition; the first function characterizes a function of acquiring user recommendation information based on radio frequency fingerprint information.
In practical application, the acquisition unit 901, the reporting unit 902 and the first receiving unit 903 may be implemented by a processor in the user recommendation device. Of course, the processor needs to execute the program stored in the memory to realize the functions of the program modules.
It should be noted that, when the user recommendation device provided in the embodiment of fig. 9 performs user recommendation, only the division of each program module is used for illustration, and in practical application, the process allocation may be performed by different program modules according to needs, that is, the internal structure of the device is divided into different program modules to complete all or part of the processes described above. In addition, the user recommending apparatus provided in the foregoing embodiment and the user recommending method embodiment belong to the same concept, and specific implementation processes of the user recommending apparatus and the user recommending method embodiment are detailed in the method embodiment, and are not repeated herein.
In order to implement the method of the embodiment of the present application, another user recommendation device is provided in the embodiment of the present application, as shown in fig. 10, where the device includes:
a second receiving unit 1001, configured to receive first radio frequency fingerprint information acquired by each of a plurality of terminals; each received first radio frequency fingerprint information corresponds to a set reference point; wherein, a plurality of setting reference points are arranged on at least one setting traffic route;
a generating unit 1002, configured to cluster the received plurality of first rf fingerprint information, and generate at least one first set; each first set in the at least one first set consists of first radio frequency fingerprint information with a first similarity greater than a set value;
a first determining unit 1003, configured to estimate, based on second radio frequency fingerprint information corresponding to each set reference point of the plurality of set reference points, an area where each first set of the at least one first set is located;
a second determining unit 1004, configured to determine, based on a region where each of the at least one first set is located, the at least one second set; the second set represents a first set matched with the area where the same train is located on the set traffic route on the area;
A sending unit, configured to send second information to each terminal corresponding to each second set; and the second information characterizes user information corresponding to other terminals in the second set.
In an embodiment, when estimating the area where each of the at least one first set is located based on the second rf fingerprint information corresponding to each of the plurality of set reference points, the first determining unit 1003 includes:
determining second similarity between the first set and second radio frequency fingerprint information corresponding to each set reference point based on third radio frequency fingerprint information corresponding to the first set; the third radio frequency fingerprint information is radio frequency fingerprint information corresponding to the central position of the first set;
and determining the area where the first set is located according to the position information of the corresponding set reference point with the highest second similarity.
In an embodiment, the generating unit 1002 clusters the received plurality of first rf fingerprint information to generate at least one first set, including:
screening the received plurality of first radio frequency fingerprint information according to set conditions to generate at least one screening result; the screening result represents a first radio frequency fingerprint collected at a set reference point distributed on the same set traffic route;
Clustering a plurality of first radio frequency fingerprint information of each screening result in the at least one screening result to generate at least one first set.
In actual application, the second receiving unit 1001, the generating unit 1002, the first determining unit 1003, and the transmitting unit 1004 may be implemented by a processor in the user recommending apparatus. Of course, the processor needs to execute the program stored in the memory to realize the functions of the program modules.
It should be noted that, when the user recommendation device provided in the embodiment of fig. 10 performs user recommendation, only the division of each program module is used for illustration, and in practical application, the process allocation may be performed by different program modules according to needs, that is, the internal structure of the device is divided into different program modules to complete all or part of the processes described above. In addition, the user recommending apparatus provided in the foregoing embodiment and the user recommending method embodiment belong to the same concept, and specific implementation processes of the user recommending apparatus and the user recommending method embodiment are detailed in the method embodiment, and are not repeated herein.
Based on the hardware implementation of the program modules, and in order to implement the method of the embodiment of the present application, the embodiment of the present application further provides an electronic device, fig. 11 is a schematic diagram of a hardware composition structure of the electronic device of the embodiment of the present application, and as shown in fig. 11, the electronic device includes:
A communication interface 1 capable of information interaction with other devices such as network devices and the like;
and the processor 2 is connected with the communication interface 1 to realize information interaction with other devices and is used for executing the user recommendation method provided by one or more technical schemes when running the computer program. And the computer program is stored on the memory 3.
Of course, in practice, the various components in the electronic device are coupled together by a bus system 4. It will be appreciated that the bus system 4 is used to enable connected communications between these components. The bus system 4 comprises, in addition to a data bus, a power bus, a control bus and a status signal bus. But for clarity of illustration the various buses are labeled as bus system 4 in fig. 11.
The memory 3 in the embodiment of the present application is used to store various types of data to support the operation of the electronic device. Examples of such data include: any computer program for operating on an electronic device.
It will be appreciated that the memory 3 may be either volatile memory or nonvolatile memory, and may include both volatile and nonvolatile memory. Wherein the nonvolatile Memory may be Read Only Memory (ROM), programmable Read Only Memory (PROM, programmable Read-Only Memory), erasable programmable Read Only Memory (EPROM, erasable Programmable Read-Only Memory), electrically erasable programmable Read Only Memory (EEPROM, electrically Erasable Programmable Read-Only Memory), magnetic random access Memory (FRAM, ferromagnetic random access Memory), flash Memory (Flash Memory), magnetic surface Memory, optical disk, or compact disk Read Only Memory (CD-ROM, compact Disc Read-Only Memory); the magnetic surface memory may be a disk memory or a tape memory. The volatile memory may be random access memory (RAM, random Access Memory), which acts as external cache memory. By way of example, and not limitation, many forms of RAM are available, such as static random access memory (SRAM, static Random Access Memory), synchronous static random access memory (SSRAM, synchronous Static Random Access Memory), dynamic random access memory (DRAM, dynamic Random Access Memory), synchronous dynamic random access memory (SDRAM, synchronous Dynamic Random Access Memory), double data rate synchronous dynamic random access memory (ddr SDRAM, double Data Rate Synchronous Dynamic Random Access Memory), enhanced synchronous dynamic random access memory (ESDRAM, enhanced Synchronous Dynamic Random Access Memory), synchronous link dynamic random access memory (SLDRAM, syncLink Dynamic Random Access Memory), direct memory bus random access memory (DRRAM, direct Rambus Random Access Memory). The memory 3 described in the embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.
The method disclosed in the embodiments of the present application may be applied to the processor 2 or implemented by the processor 2. The processor 2 may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in the processor 2 or by instructions in the form of software. The processor 2 described above may be a general purpose processor, DSP, or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. The processor 2 may implement or perform the methods, steps and logic blocks disclosed in the embodiments of the present application. The general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly embodied in a hardware decoding processor or implemented by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium in the memory 3 and the processor 2 reads the program in the memory 3 to perform the steps of the method described above in connection with its hardware.
The processor 2 implements corresponding flows in the methods of the embodiments of the present application when executing the program, and for brevity, will not be described in detail herein.
In an exemplary embodiment, the present application also provides a storage medium, i.e. a computer storage medium, in particular a computer readable storage medium, for example comprising a memory 3 storing a computer program executable by the processor 2 for performing the steps of the method described above. The computer readable storage medium may be FRAM, ROM, PROM, EPROM, EEPROM, flash Memory, magnetic surface Memory, optical disk, or CD-ROM.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus, terminal and method may be implemented in other manners. The above described device embodiments are only illustrative, e.g. the division of the units is only one logical function division, and there may be other divisions in practice, such as: multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. In addition, the various components shown or discussed may be coupled or directly coupled or communicatively coupled to each other via some interface, whether indirectly coupled or communicatively coupled to devices or units, whether electrically, mechanically, or otherwise.
The units described as separate units may or may not be physically separate, and units displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units; some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may be separately used as one unit, or two or more units may be integrated in one unit; the integrated units may be implemented in hardware or in hardware plus software functional units.
Those of ordinary skill in the art will appreciate that: all or part of the steps for implementing the above method embodiments may be implemented by hardware associated with program instructions, where the foregoing program may be stored in a computer readable storage medium, and when executed, the program performs steps including the above method embodiments; and the aforementioned storage medium includes: a removable storage device, ROM, RAM, magnetic or optical disk, or other medium capable of storing program code.
Alternatively, the integrated units described above may be stored in a computer readable storage medium if implemented in the form of software functional modules and sold or used as a stand-alone product. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially or partly contributing to the prior art, and the computer software product may be stored in a storage medium, and include several instructions to cause an electronic device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a removable storage device, ROM, RAM, magnetic or optical disk, or other medium capable of storing program code.
The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (8)
1. A user recommendation method, comprising:
under the condition that a first function of a first terminal is in an on state, performing radio frequency fingerprint acquisition;
uploading the acquired first radio frequency fingerprint information of the first set reference point to a server; the first set reference point is one set reference point of a plurality of set reference points arranged on at least one set traffic line;
receiving second information returned by the server based on the matching results of the first radio frequency fingerprint information and the plurality of set reference points; the second information characterizes user information corresponding to a terminal of the first terminal in the same train travelling on a set traffic route;
the server returns second information based on the matching result of the first radio frequency fingerprint information and the plurality of set reference points, and the second information comprises:
the server is used for screening a plurality of first radio frequency fingerprint information acquired by a plurality of received terminals according to set conditions to generate at least one screening result; the screening result represents a first radio frequency fingerprint collected at a set reference point distributed on the same set traffic route; the server is further configured to cluster a plurality of first radio frequency fingerprint information of each of the at least one screening result, and generate at least one first set; the first radio frequency fingerprint information in each of the at least one first set is located in the same region; each first set in the at least one first set consists of first radio frequency fingerprint information with a first similarity greater than a set value; determining a second similarity of the first set and second radio frequency fingerprint information corresponding to each set reference point based on third radio frequency fingerprint information corresponding to the first set; the third radio frequency fingerprint information is radio frequency fingerprint information corresponding to the central position of the first set; determining the region where the first set is located according to the position information of the corresponding set reference point with the highest second similarity; determining at least one second set based on the region of each first set in the at least one first set; the second set represents a first set matched with the area where the same train is located on the set traffic route on the area; the second information includes user information of the terminal corresponding to the second set.
2. The user recommendation method according to claim 1, wherein the method further comprises:
triggering and executing radio frequency fingerprint acquisition when the first terminal is detected to enter the range of the area where the at least one set traffic route is located; and/or the number of the groups of groups,
and stopping performing radio frequency fingerprint acquisition when the first terminal is detected to leave the range of the area where the at least one set traffic route is located.
3. The user recommendation method according to claim 1, wherein the first function characterizes a function of acquiring user recommendation information based on radio frequency fingerprint information.
4. A user recommendation method, comprising:
receiving first radio frequency fingerprint information acquired by each terminal in a plurality of terminals; each received first radio frequency fingerprint information corresponds to a set reference point; wherein, a plurality of setting reference points are arranged on at least one setting traffic route;
screening the received plurality of first radio frequency fingerprint information according to set conditions to generate at least one screening result; the screening result represents a first radio frequency fingerprint collected at a set reference point distributed on the same set traffic route;
clustering a plurality of first radio frequency fingerprint information of each screening result in the at least one screening result to generate at least one first set; the first radio frequency fingerprint information in each of the at least one first set is located in the same region; each first set in the at least one first set consists of first radio frequency fingerprint information with a first similarity greater than a set value;
Determining second similarity of the first set and second radio frequency fingerprint information corresponding to each set reference point based on third radio frequency fingerprint information corresponding to the first set; the third radio frequency fingerprint information is radio frequency fingerprint information corresponding to the central position of the first set; determining the region where the first set is located according to the position information of the corresponding set reference point with the highest second similarity;
determining at least one second set based on the region of each first set in the at least one first set; the second set represents a first set matched with the area where the same train is located on the set traffic route on the area;
sending second information to each terminal corresponding to each second set; and the second information characterizes user information corresponding to other terminals in the second set.
5. A user recommendation device, comprising:
the acquisition unit is used for executing radio frequency fingerprint acquisition under the condition that the first function of the first terminal is in an on state;
the reporting unit is used for uploading the acquired first radio frequency fingerprint information of the first set reference point to the server; the first set reference point is one set reference point of a plurality of set reference points arranged on at least one set traffic line;
The first receiving unit is used for receiving second information returned by the server based on the matching results of the first radio frequency fingerprint information and the plurality of set reference points; the second information characterizes user information corresponding to a terminal of the first terminal in the same train travelling on a set traffic route;
the server returns second information based on the matching result of the first radio frequency fingerprint information and the plurality of set reference points, and the second information comprises:
the server is used for screening a plurality of first radio frequency fingerprint information acquired by a plurality of received terminals according to set conditions to generate at least one screening result; the screening result represents a first radio frequency fingerprint collected at a set reference point distributed on the same set traffic route; the server is further configured to cluster a plurality of first radio frequency fingerprint information of each of the at least one screening result, and generate at least one first set; the first radio frequency fingerprint information in each of the at least one first set is located in the same region; each first set in the at least one first set consists of first radio frequency fingerprint information with a first similarity greater than a set value; determining a second similarity of the first set and second radio frequency fingerprint information corresponding to each set reference point based on third radio frequency fingerprint information corresponding to the first set; the third radio frequency fingerprint information is radio frequency fingerprint information corresponding to the central position of the first set; determining the region where the first set is located according to the position information of the corresponding set reference point with the highest second similarity; determining at least one second set based on the region of each first set in the at least one first set; the second set represents a first set matched with the area where the same train is located on the set traffic route on the area; the second information includes user information of the terminal corresponding to the second set.
6. A user recommendation device, comprising:
the second receiving unit is used for receiving the first radio frequency fingerprint information acquired by each terminal in the plurality of terminals; each received first radio frequency fingerprint information corresponds to a set reference point; wherein, a plurality of setting reference points are arranged on at least one setting traffic route;
the generating unit is used for screening the received multiple first radio frequency fingerprint information according to the set conditions to generate at least one screening result; the screening result represents a first radio frequency fingerprint collected at a set reference point distributed on the same set traffic route; clustering a plurality of first radio frequency fingerprint information of each screening result in the at least one screening result to generate at least one first set; the first radio frequency fingerprint information in each of the at least one first set is located in the same region; each first set in the at least one first set consists of first radio frequency fingerprint information with a first similarity greater than a set value;
the first determining unit is used for determining second similarity between the first set and second radio frequency fingerprint information corresponding to each set reference point based on third radio frequency fingerprint information corresponding to the first set; the third radio frequency fingerprint information is radio frequency fingerprint information corresponding to the central position of the first set; determining the region where the first set is located according to the position information of the corresponding set reference point with the highest second similarity;
A second determining unit, configured to determine at least one second set based on a region where each of the at least one first set is located; the second set represents a first set matched with the area where the same train is located on the set traffic route on the area;
a sending unit, configured to send second information to each terminal corresponding to each second set; and the second information characterizes user information corresponding to other terminals in the second set.
7. An electronic device, comprising: a processor and a memory for storing a computer program capable of running on the processor,
wherein the processor is adapted to perform the steps of the method of any of claims 1 to 3 or 4 when the computer program is run.
8. A storage medium having stored thereon a computer program, which when executed by a processor performs the steps of the method of any of claims 1 to 3 or 4.
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